WO2012079199A1 - 风道式风力发电机 - Google Patents

风道式风力发电机 Download PDF

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Publication number
WO2012079199A1
WO2012079199A1 PCT/CN2010/002067 CN2010002067W WO2012079199A1 WO 2012079199 A1 WO2012079199 A1 WO 2012079199A1 CN 2010002067 W CN2010002067 W CN 2010002067W WO 2012079199 A1 WO2012079199 A1 WO 2012079199A1
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WO
WIPO (PCT)
Prior art keywords
blades
wind
pair
wind power
power plant
Prior art date
Application number
PCT/CN2010/002067
Other languages
English (en)
French (fr)
Inventor
周建煌
Original Assignee
巨诺国际有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 巨诺国际有限公司 filed Critical 巨诺国际有限公司
Priority to PCT/CN2010/002067 priority Critical patent/WO2012079199A1/zh
Publication of WO2012079199A1 publication Critical patent/WO2012079199A1/zh

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor 
    • F03D3/06—Rotors
    • F03D3/062—Rotors characterised by their construction elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/40—Use of a multiplicity of similar components
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/74—Wind turbines with rotation axis perpendicular to the wind direction

Definitions

  • the present invention relates to the field of wind power generation equipment, and in particular to a wind tunnel type wind power generator.
  • the wind turbines used in the world today basically adopt the setting of horizontal blades. Although the horizontal wind turbine has high cost, high maintenance cost and high damage rate, its fan blade power generation efficiency is high, so it is still widely used.
  • Vertical wind turbines that is, wind turbines with vertical support shafts for wind turbines
  • the present invention aims to improve the power generation efficiency of a vertical wind power generator, and designs a double-wing air duct impeller type (wind blade) type vertical wind power generator.
  • the wind power generation apparatus includes: a support shaft; a wind wheel rotating in a horizontal plane rotatably fixed to the support shaft; a plurality of pairs of blades fixed on the wind wheel, wherein each pair of blades is disposed oppositely, and each An accelerating air passage is formed between the blades.
  • each vane configuration is airfoil shaped.
  • each of the pairs of blades is symmetrically arranged side by side.
  • the cross-sectional area of the accelerating duct is reduced. More preferably, in each pair of blades, each blade projects relatively prominently in its intermediate portion.
  • the wind wheel is uniformly provided with 2 pairs, 3 pairs or 4 pairs of blades. Confirmation Each pair of blades is disposed opposite each other in a vertical direction to form a Darien wind wheel.
  • Fig. 1 shows a pair of air duct blades of a vertical type wind power generator of the present invention
  • Fig. 2 is a top plan view showing a vertical type wind power generator of the present invention. detailed description
  • the two wing-shaped blades 1, 2 are arranged side by side, thereby forming an accelerating duct between the two vanes, which is accelerated as the wind enters the duct.
  • the wind speed between the wings can be accelerated to 1.5 to 2 times.
  • the wind speed difference between the upper and lower sides of the wing 1 is increased by 1.5 to 2 times, so that the lifting force of the wing 1 is increased by 1.5 to 2 times compared with the single wing without the acceleration air passage, thereby improving the efficiency of the blade.
  • the wind between the wind tunnels blows toward the wing 2, and has an angle of attack on the wing 2.
  • the wind acts on the lower surface of the wing 2, forming a rising driving force, and as the angle of attack becomes larger and larger, the driving force is gradually increased.
  • Figure 2 shows a schematic diagram of the operation of a vertical wind turbine.
  • the lifting forces of the two wings are perpendicular to each other (relative to the direction of rotation) and cancel each other, and do not push the blades. force.
  • the wings 1 and 2 are both driven to form the rotational force of the blade, which is more powerful than the single wing. Increase by more than 1.5 times.
  • the rotational force of the blade gradually increases from zero; when the angle between the wing and the wind changes from 180° to 270°, the power is turned. Beginning to gradually weaken to zero; when the angle between the wing and the wind changes from 270° to 360°, the turning force begins to increase again; when the angle between the wing and the wind changes from 0° to 90°, The momentum began to gradually weaken to zero.
  • the above describes the operating characteristics of a vertical wind turbine.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Wind Motors (AREA)

Description

风道式风力发电机
技术领域
本发明涉及风力发电设备领域， 尤其是风道式风力发电机 背景技术
当今世界范围内使用的风力发电机，基本上都采用水平风叶的设 置。 水平式风力发电机虽然造价高， 维修成本高， 损坏率高， 但是其 风叶发电的效率较高， 所以仍然在普遍地使用。 垂直风力发电机（即 风轮的支撑轴垂直设置的风力发电机）， 有不少优点， 但其风叶发电 的效率较低， 因此很少被采用。 发明内容
本发明旨在提高垂直风力发电机的发电效率，并且设计了一种双 翼风道叶轮（风叶）式的垂直风力发电机。 该风力发电设备包括： 支 撑轴； 在水平面内转动的风轮， 其可转动地固定到支撑轴； 固定在风 轮上的多对风叶， 其中每对风叶设置为相对设置， 并且在每对风叶之 间形成加速风道。
在一个优选的实施例中， 每个风叶构型为机翼形。
在另一优选的实施例中， 每对风叶中的每一个对称并排地设置。 优选的， 在每个加速风道的中间部分， 该加速风道的横截面积缩小。 更优选的， 在每对风叶中， 每片风叶在其中间部段相对地突出。
在另一优选的实施例中，该风轮上均匀地设有 2对、 3对或 4对风叶。 确认本 所述每对风叶在竖直方向上相对设置， 从而形成达里厄风轮。 附图说明
图 1示出了本发明的垂直型风力发电机的一对风道风叶； 图 2示出了本发明的垂直型风力发电机的俯视示意图。 具体实施方式
如图一所示， 两机翼形风叶 1、 2相对并排， 从而在两个风叶之 间形成加速风道， 当风进入风道就被加速。
机翼之间的风道风速可加速至 1.5到 2倍。 从而机翼 1上下两侧 的风速差增加 1.5至 2倍， 因此机翼 1的上升力与没有加速风道的单 机翼相比增加 1.5至 2倍， 提高了风叶的效率。
风道间的风吹向机翼 2, 对机翼 2有攻角。 当达到临界攻角后， 风对机翼 2的下表面产生作用， 形成上升推动力， 随攻角越来越大， 推动力也逐步增大。
图二示出了垂直风力机的运转示意图。
当机翼与风成 90° 角时（图中所示的上下两个机翼）， 两机翼的 上升力相互垂直（相对于转动方向） 向内侧， 并且互相抵消， 对风叶 不产生推动力。
当机翼与风成 180° 角时 （图中所示的左右两个机翼）， 机翼 1、 2都受到推动力， 形成风叶的转动力， 此转动力比单机翼风叶相比增 大 1.5倍以上。 在机翼与风所成的角度在 90° 到 180° 之间时，风叶的转动力由 零开始逐渐增强； 当机翼与风所成的角度由 180° 变化到 270° 时， 转动力开始逐渐减弱至零； 当机翼与风所成的角度由 270° 变化到 360° 时， 转动力又开始逐渐增强； 当机翼与风所成的角度由 0° 变 化到 90° 时， 转动力又开始逐渐减弱至零。 上述描述了垂直风力机 的工作特性。
单机冀风叶的转动力变化与双机翼风叶的变化规律一样，但双机 翼风叶的转动力高 1.5倍以上。 因此采用双机翼风叶的垂直风力机， 效率会高很多， 应可以与水平风力机之效率相当。这就克服了垂直风 力机低效率的缺点。

Claims

权利要求书
1 . 一种风力发电设备， 包括：
支撑轴；
在水平面内转动的风轮， 其可转动地固定到支撑轴；
固定在风轮上的多对风叶， 其中每对风叶设置为相对设置， 并且 在每对风叶之间形成加速风道。
2. 如权利要求 1的风力发电设备， 其中每个风叶构型为机翼形。
3. 如权利要求 1或 2的风力发电设备，其中每对风叶中的每一个 对称并排地设置。
4. 如权利要求 3的风力发电设备，其中在每个加速风道的中间部 分， 该加速风道的横截面积缩小。
5. 如权利要求 3的风力发电设备， 其中在每对风叶中， 每片风叶 在其中间部段相对地突出。
6. 如权利要求 1、 4、 5中任意一项的风力发电设备， 其中该风轮 上均匀地设有 2对、 3对或 4对风叶。
7. 如权利要求 1所述的风力发电设备， 其中所述每对风叶在竖直 方向上相对设置。
PCT/CN2010/002067 2010-12-17 2010-12-17 风道式风力发电机 WO2012079199A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2010/002067 WO2012079199A1 (zh) 2010-12-17 2010-12-17 风道式风力发电机

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2010/002067 WO2012079199A1 (zh) 2010-12-17 2010-12-17 风道式风力发电机

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WO2012079199A1 true WO2012079199A1 (zh) 2012-06-21

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3130507A1 (de) * 1981-08-01 1983-03-17 Peter 5190 Stolberg Rombach Windrad
GB2185788A (en) * 1986-01-28 1987-07-29 Nei International Research & D Blade for wind turbine
DE3607278A1 (de) * 1986-03-03 1987-09-24 Eggert Gertfried Windkraftmaschine mit vertikal stehendem fluegelrotor
DE29608787U1 (de) * 1996-05-15 1996-08-08 Freimund Wolfgang Windkraftanlage

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3130507A1 (de) * 1981-08-01 1983-03-17 Peter 5190 Stolberg Rombach Windrad
GB2185788A (en) * 1986-01-28 1987-07-29 Nei International Research & D Blade for wind turbine
DE3607278A1 (de) * 1986-03-03 1987-09-24 Eggert Gertfried Windkraftmaschine mit vertikal stehendem fluegelrotor
DE29608787U1 (de) * 1996-05-15 1996-08-08 Freimund Wolfgang Windkraftanlage

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